OncoMed Receives Orphan Drug Designation From the FDA for Demcizumab in Pancreatic Cancer

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OncoMed-Pharmaceuticals

May 2, 2014

OncoMed Pharmaceuticals Inc., a clinical-stage company developing novel therapeutics that target cancer stem cells (CSCs), or tumor-initiating cells, today announced that the U.S. Food and Drug Administration (FDA) Department of Orphan Products Development has granted orphan drug designation to demcizumab (anti-DLL4, OMP-21M18) for the treatment of pancreatic cancer. OncoMed is currently conducting a Phase 1b clinical trial of demcizumab in combination with Abraxane® (nab-paclitaxel) and gemcitabine in first-line Stage IV pancreatic cancer patients.

Paul J. Hastings, Chairman and Chief Executive Officer of OncoMed, commented, “We are very pleased that the FDA designated demcizumab as an orphan drug for the treatment of pancreatic cancer which is a major unmet medical need.  Based on the encouraging safety and response data achieved to date for demcizumab in OncoMed’s Phase 1a and 1b clinical studies, we anticipate advancing demcizumab into a randomized Phase 2 clinical study in combination with Abraxane and gemcitabine in first-line pancreatic cancer in 2014.”

According to the American Cancer Society, there are approximately 46,000 new cases of pancreatic cancer each year in the United States. The majority of patients with pancreatic cancer are diagnosed after their cancer has spread locally and/or metastasized to distant organs. Rates of pancreatic cancer have been increasing over the past ten years and it is now the fourth-leading cause of cancer-related deaths. The average life expectancy after the diagnosis of metastatic pancreatic cancer is less than one year.

The FDA’s Orphan Drug program provides orphan status to drugs and biologics that are intended for the treatment of rare diseases that affect fewer than 200,000 people in the U.S. This designation provides eligibility for a seven-year period of market exclusivity in the U.S. after product approval, FDA assistance in clinical trial design, and an exemption from FDA user fees.

About Demcizumab (Anti-DLL4, OMP-21M18)

Demcizumab is a humanized monoclonal antibody that inhibits Delta-Like Ligand 4 (DLL4) in the Notch signaling pathway. Two Phase 1b combination trials of demcizumab are ongoing. The first trial is in combination with standard-of-care gemcitabine and Abraxane® (nab-paclitaxel) in first-line advanced pancreatic cancer patients, and the second trial is in combination with standard-of-care carboplatin and pemetrexed (Alimta®) in patients with first-line advanced non-small cell lung cancer (NSCLC). In addition, a Phase 1b/2 trial of demcizumab and paclitaxel in patients with platinum-resistant ovarian cancer is ongoing at The University of Texas MD Anderson Cancer Center. Interim data from the demcizumab clinical study in pancreatic patients were presented in January 2014 at the Gastrointestinal Cancers Symposium held in San Francisco, CA. Data from the ongoing demcizumab NSCLC Phase 1b study were presented at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics in Boston, MA, in October 2013. Demcizumab is part of OncoMed’s collaboration with Celgene Corporation.

About OncoMed Pharmaceuticals

OncoMed Pharmaceuticals is a clinical-stage company focused on discovering and developing novel therapeutics targeting cancer stem cells (CSCs). OncoMed has five anti-cancer product candidates in clinical development, including demcizumab (anti-DLL4, OMP-21M18), anti-Notch 2/3 (OMP-59R5), anti-Notch1 (OMP-52M51), vantictumab (anti-Fzd7, OMP-18R5), and Fzd8-Fc (OMP-54F28), which target key cancer stem cell signaling pathways including Notch and Wnt. OncoMed has two other antibodies in preclinical development, anti-DLL4/anti-VEGF bispecific (OMP-305B83) and anti-RSPO3, with Investigational New Drug filings planned for late 2014 or early 2015. OncoMed is also pursuing discovery of additional novel anti-CSC product candidates. OncoMed has formed strategic alliances with Celgene Corporation, Bayer Pharma AG and GlaxoSmithKline (GSK). Additional information can be found at the company’s website: www.oncomed.com.

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